622456920 has 192 divisors, whose sum is σ = 2137514400. Its totient is φ = 161118720.

The previous prime is 622456847. The next prime is 622456943. The reversal of 622456920 is 29654226.

622456920 is a `hidden beast` number, since 622 + 4 + 5 + 6 + 9 + 20 = 666.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 1478310 + ... + 1478730.

Almost surely, 2^622456920 is an apocalyptic number.

622456920 is a gapful number since it is divisible by the number (60) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 622456920, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1068757200).

622456920 is an abundant number, since it is smaller than the sum of its proper divisors (1515057480).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

622456920 is a wasteful number, since it uses less digits than its factorization.

622456920 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 515 (or 468 counting only the distinct ones).

The product of its (nonzero) digits is 51840, while the sum is 36.

The square root of 622456920 is about 24949.0865564253. The cubic root of 622456920 is about 853.8267687907.

The spelling of 622456920 in words is "six hundred twenty-two million, four hundred fifty-six thousand, nine hundred twenty".